Scenario:
I have 2 tracks in my own beatport playlist, and I add some comments in the Key Text field on track 1.
I then delete the text of the from the Key Text field and something odd happens, the name of the 1st track get copied into the the name of the following track in the playlist.
I am on mac Sequoia 15.5 running Traktor 4.11.23
It sounds like a bug!